Tagalog is an Austronesian language spoken as a first language by a third of the population of the Philippines and as a second language by most of the rest. It is the first language of the Philippine region IV (CALABARZON and MIMAROPA) and of Metro Manila. Its standardized form, commonly called Filipino, is the national language and one of two official languages of the Philippines. It is related to—though not readily intelligible with—other Austronesian languages such as Malay, Javanese, and Hawaiian.It is spoken by approximately 64.3 million Filipinos, 96.4% of the household population.21.5 million, or 28.15% of the total Philippine population, speak it as a native language. It is spoken by approximately 64.3 million Filipinos, 96.4% of the household population.21.5 million, or 28.15% of the total Philippine population, speak it as a native language.Tagalog speakers are found in other parts of the Philippines as well as throughout the world, though its use is usually limited to communication between Filipino ethnic groups. In 2010, the US Census bureau reported (based on data collected in 2007) that in the United States it was the fourth most-spoken language at home with almost 1.5 million speakers, behind Spanish or Spanish Creole, French (including Patois, Cajun, Creole), and Chinese. Tagalog ranked as the third most spoken language in metropolitan statistical areas, behind Spanish and Chinese but ahead of French.(wikipedia)